/*
 * Copyright (c) JForum Team
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, 
 * with or without modification, are permitted provided 
 * that the following conditions are met:
 * 
 * 1) Redistributions of source code must retain the above 
 * copyright notice, this list of conditions and the 
 * following  disclaimer.
 * 2)  Redistributions in binary form must reproduce the 
 * above copyright notice, this list of conditions and 
 * the following disclaimer in the documentation and/or 
 * other materials provided with the distribution.
 * 3) Neither the name of "Rafael Steil" nor 
 * the names of its contributors may be used to endorse 
 * or promote products derived from this software without 
 * specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT 
 * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR 
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
 * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, 
 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 * IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
 * 
 * This file creation date: 25/08/2004 23:32:20
 * The JForum Project
 * http://www.jforum.net
 */
package net.jforum;

import java.sql.Connection;
import java.sql.DriverManager;

import net.jforum.exceptions.DatabaseException;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;

/**
 * Non-pooled connection implementation. This class will ask a new conneciton to
 * the database on every <code>getConnection()</code> class. Uses of this class
 * include systems where a connection pool is not permited or the connections'
 * life time is too short, not justifying to have a connection pool.
 * 
 * @author Rafael Steil
 * @version $Id: SimpleConnection.java,v 1.16 2007/09/12 23:54:21 rafaelsteil
 *          Exp $
 */
public class SimpleConnection extends DBConnection {
    /**
     * @see net.jforum.Connection#init()
     */
    public void init() throws Exception {
	try {
	    Class.forName(SystemGlobals
		    .getValue(ConfigKeys.DATABASE_CONNECTION_DRIVER));

	    // Try to validate the connection url
	    Connection conn = this.getConnection();

	    if (conn != null) {
		this.releaseConnection(conn);
	    }

	    this.isDatabaseUp = true;
	} catch (Exception e) {
	    this.isDatabaseUp = false;
	    throw e;
	}
    }

    /**
     * @see net.jforum.Connection#getConnection()
     */
    public Connection getConnection() {
	try {
	    return DriverManager.getConnection(SystemGlobals
		    .getValue(ConfigKeys.DATABASE_CONNECTION_STRING));
	} catch (Exception e) {
	    e.printStackTrace();
	    throw new DatabaseException(e);
	}
    }

    /**
     * @see net.jforum.Connection#releaseConnection(java.sql.Connection)
     */
    public void releaseConnection(Connection conn) {
	if (conn != null) {
	    try {
		conn.close();
	    } catch (Exception e) {
	    }
	}
    }

    /**
     * @see net.jforum.DBConnection#realReleaseAllConnections()
     */
    public void realReleaseAllConnections() throws Exception {
    }
}
